The Adamant platebody is an armour used in melee with stat bonuses between mithril and rune. A player with 88 Smithing can create an adamant platebody by using five adamant bars on an anvil while carrying a hammer, granting 312.5 Smithing experience per platebody. It requires level 30 Defence to wear. Adamant platebodies can also be purchased from Valaine in the champions guild for 21,632gp.

Adamant platebodies are commonly obtained as a reward from a level 2 Clue Scroll.